Dimensions of lap-joint-stub-ends-ASME B16.9

Dimensions of lap-joint-stub-ends-ASME B16.9

Dimensions-of-lap-joint-stub-ends-ASME-B16-9

Dimensions-of-lap-joint-stub-ends-ASME-B16-9

NPSOD of BarrelLong PatternShort PatternRadius of Diameter of
MaxMinLength, F Length, FFillet, RLap, G
1/222.820.57651335
3/428.125.97651343
13532.610251351
1 ¼43.641.410251564
1 ½49.947.510251673
262.459.515264892
2 ½75.372.2152648105
391.388.11526410127
3 ½104100.81527610140
4116.7113.51527611157
5144.3140.52037611186
6171.3167.52038913216
8222.1218.320310213270
10277.2272.325412713324
12328323.125415213381
14359.9354.830515213413
16411405.630515213470
1846245630515213533
2051450730515213584
2256555830515213641
2461660930515213692
Notes:
1) Gasket face finish shall be in accordance with ASME B16.5 for raised face flanges.
2) The lap thickness T shall not be less than nominal pipe wall thickness.
3) When short pattern stub ends are used with larger flanges in Classes 300 and 600,with most sizes in Classes 900 and higher,and when long pattern stub ends are used with larger flanges in Classes 1500 and 2500,it may necessary to increase the length of the stub ends in order to avoid covering the weld with the flange.Such increases in length shall be a matter of agreement between the manufacturer and purchaser.
4) When special facings such as tongue and groove,male and female,etc.,are employed,additional lap thickness must be provided and such additional thickness shall be in addition to (not included in)the basic length F.

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